Question about Outlook Express

I cannot send emails using Windows live mail. The message I keep on receiving is the following: 

Server error: 550

Answer from server: 550 5.7.3 Requested action aborted; user not authenticated

Server: 'smtp.live.com'

Error ID Windows Live Mail: 0x800CCC78

Protocol: SMTP

Port: 25

Secure(SSL): Sim

Can you please tell me how to fix this? Many thanks.

Hi,

I have an Acer laptop with Windows 10 and RealTek High Definition Audio. Audio feature works fine for listening to ITunes music but when I activate a video such as Utube I get no volume. Mute is not on but can't figure out why I can't activate the volume. Any ideas?

Thanks,

Big EPR 

Windows movie maker has worked fine for me in the past but is now not letting me publish movies to YouTube. I get an error message saying that there is a network problem. PLEASE CHECK YOUR NETWORK CONNECTION AND TRY AGAIN. IT GOES THRU SAVE MOVIE AND PUBLISH MOVIE AND THEN SAYS MP4 WASN'T PUBLISHED SUCCESSFULLY. CHECK YOUR NETWORK CONNECTION. NOTHING WRONG WITH MY INTERNET CONNECTION. WHEN YOU CLICK MORE INFORMATION IT SAYS MP4 FAILED TO UPLOAD TO WITH THE FOLLOWING ERROR - INTERNAL SERVER ERROR INTERNAL SERVER.

PLEASE HELP ME GET BACK TO PUBLISHING SUCESSFULLY.

THANK YOU

Hello,

I have Windows 10 and started making a movie in Movie Maker from Windows Essentials 2012. After about an hour of editing, my video starts to look like this...

...lots of yellow warning triangles with error 0x87160139 when double-clicking any file.

I close the program and open again and then it works about 1 out of 10 times.

I feel that I have tried everything to fix it. I have read TONS of forums, uninstalled and then re-installed Movie Maker a zillion times, tried repairing it, and much more. I am having issues very much like this forum...

How do I Remove at&t from the taskbar????